// license:BSD-3-Clause // copyright-holders:Juergen Buchmueller /***************************************************************************** * * z80dasm.c * Portable Z80 disassembler * *****************************************************************************/ #include "emu.h" #include "debugger.h" #include "z80dasm.h" static const char *const s_mnemonic[] = { "adc" ,"add" ,"and" ,"bit" ,"call","ccf" ,"cp" ,"cpd" , "cpdr","cpi" ,"cpir","cpl" ,"daa" ,"db" ,"dec" ,"di" , "djnz","ei" ,"ex" ,"exx" ,"halt","im" ,"in" ,"inc" , "ind" ,"indr","ini" ,"inir","jp" ,"jr" ,"ld" ,"ldd" , "lddr","ldi" ,"ldir","neg" ,"nop" ,"or" ,"otdr","otir", "out" ,"outd","outi","pop" ,"push","res" ,"ret" ,"reti", "retn","rl" ,"rla" ,"rlc" ,"rlca","rld" ,"rr" ,"rra" , "rrc" ,"rrca","rrd" ,"rst" ,"sbc" ,"scf" ,"set" ,"sla" , "sll" ,"sra" ,"srl" ,"sub" ,"xor " }; const u32 z80_disassembler::s_flags[] = { 0 ,0 ,0 ,0 ,STEP_OVER,0 ,0 ,0 , STEP_OVER,0 ,STEP_OVER,0 ,0 ,0 ,0 ,0 , STEP_OVER,0 ,0 ,0 ,STEP_OVER,0 ,0 ,0 , 0 ,STEP_OVER,0 ,STEP_OVER,0 ,0 ,0 ,0 , STEP_OVER,0 ,STEP_OVER,0 ,0 ,0 ,STEP_OVER,STEP_OVER, 0 ,0 ,0 ,0 ,0 ,0 ,STEP_OUT ,STEP_OUT , STEP_OUT ,0 ,0 ,0 ,0 ,0 ,0 ,0 , 0 ,0 ,0 ,STEP_OVER,0 ,0 ,0 ,0 , 0 ,0 ,0 ,0 ,0 }; const z80_disassembler::z80dasm z80_disassembler::mnemonic_xx_cb[256] = { {zRLC,"b=Y"}, {zRLC,"c=Y"}, {zRLC,"d=Y"}, {zRLC,"e=Y"}, {zRLC,"h=Y"}, {zRLC,"l=Y"}, {zRLC,"Y"}, {zRLC,"a=Y"}, {zRRC,"b=Y"}, {zRRC,"c=Y"}, {zRRC,"d=Y"}, {zRRC,"e=Y"}, {zRRC,"h=Y"}, {zRRC,"l=Y"}, {zRRC,"Y"}, {zRRC,"a=Y"}, {zRL,"b=Y"}, {zRL,"c=Y"}, {zRL,"d=Y"}, {zRL,"e=Y"}, {zRL,"h=Y"}, {zRL,"l=Y"}, {zRL,"Y"}, {zRL,"a=Y"}, {zRR,"b=Y"}, {zRR,"c=Y"}, {zRR,"d=Y"}, {zRR,"e=Y"}, {zRR,"h=Y"}, {zRR,"l=Y"}, {zRR,"Y"}, {zRR,"a=Y"}, {zSLA,"b=Y"}, {zSLA,"c=Y"}, {zSLA,"d=Y"}, {zSLA,"e=Y"}, {zSLA,"h=Y"}, {zSLA,"l=Y"}, {zSLA,"Y"}, {zSLA,"a=Y"}, {zSRA,"b=Y"}, {zSRA,"c=Y"}, {zSRA,"d=Y"}, {zSRA,"e=Y"}, {zSRA,"h=Y"}, {zSRA,"l=Y"}, {zSRA,"Y"}, {zSRA,"a=Y"}, {zSLL,"b=Y"}, {zSLL,"c=Y"}, {zSLL,"d=Y"}, {zSLL,"e=Y"}, {zSLL,"h=Y"}, {zSLL,"l=Y"}, {zSLL,"Y"}, {zSLL,"a=Y"}, {zSRL,"b=Y"}, {zSRL,"c=Y"}, {zSRL,"d=Y"}, {zSRL,"e=Y"}, {zSRL,"h=Y"}, {zSRL,"l=Y"}, {zSRL,"Y"}, {zSRL,"a=Y"}, {zBIT,"b=0,Y"}, {zBIT,"c=0,Y"}, {zBIT,"d=0,Y"}, {zBIT,"e=0,Y"}, {zBIT,"h=0,Y"}, {zBIT,"l=0,Y"}, {zBIT,"0,Y"}, {zBIT,"a=0,Y"}, {zBIT,"b=1,Y"}, {zBIT,"c=1,Y"}, {zBIT,"d=1,Y"}, {zBIT,"e=1,Y"}, {zBIT,"h=1,Y"}, {zBIT,"l=1,Y"}, {zBIT,"1,Y"}, {zBIT,"a=1,Y"}, {zBIT,"b=2,Y"}, {zBIT,"c=2,Y"}, {zBIT,"d=2,Y"}, {zBIT,"e=2,Y"}, {zBIT,"h=2,Y"}, {zBIT,"l=2,Y"}, {zBIT,"2,Y"}, {zBIT,"a=2,Y"}, {zBIT,"b=3,Y"}, {zBIT,"c=3,Y"}, {zBIT,"d=3,Y"}, {zBIT,"e=3,Y"}, {zBIT,"h=3,Y"}, {zBIT,"l=3,Y"}, {zBIT,"3,Y"}, {zBIT,"a=3,Y"}, {zBIT,"b=4,Y"}, {zBIT,"c=4,Y"}, {zBIT,"d=4,Y"}, {zBIT,"e=4,Y"}, {zBIT,"h=4,Y"}, {zBIT,"l=4,Y"}, {zBIT,"4,Y"}, {zBIT,"a=4,Y"}, {zBIT,"b=5,Y"}, {zBIT,"c=5,Y"}, {zBIT,"d=5,Y"}, {zBIT,"e=5,Y"}, {zBIT,"h=5,Y"}, {zBIT,"l=5,Y"}, {zBIT,"5,Y"}, {zBIT,"a=5,Y"}, {zBIT,"b=6,Y"}, {zBIT,"c=6,Y"}, {zBIT,"d=6,Y"}, {zBIT,"e=6,Y"}, {zBIT,"h=6,Y"}, {zBIT,"l=6,Y"}, {zBIT,"6,Y"}, {zBIT,"a=6,Y"}, {zBIT,"b=7,Y"}, {zBIT,"c=7,Y"}, {zBIT,"d=7,Y"}, {zBIT,"e=7,Y"}, {zBIT,"h=7,Y"}, {zBIT,"l=7,Y"}, {zBIT,"7,Y"}, {zBIT,"a=7,Y"}, {zRES,"b=0,Y"}, {zRES,"c=0,Y"}, {zRES,"d=0,Y"}, {zRES,"e=0,Y"}, {zRES,"h=0,Y"}, {zRES,"l=0,Y"}, {zRES,"0,Y"}, {zRES,"a=0,Y"}, {zRES,"b=1,Y"}, {zRES,"c=1,Y"}, {zRES,"d=1,Y"}, {zRES,"e=1,Y"}, {zRES,"h=1,Y"}, {zRES,"l=1,Y"}, {zRES,"1,Y"}, {zRES,"a=1,Y"}, {zRES,"b=2,Y"}, {zRES,"c=2,Y"}, {zRES,"d=2,Y"}, {zRES,"e=2,Y"}, {zRES,"h=2,Y"}, {zRES,"l=2,Y"}, {zRES,"2,Y"}, {zRES,"a=2,Y"}, {zRES,"b=3,Y"}, {zRES,"c=3,Y"}, {zRES,"d=3,Y"}, {zRES,"e=3,Y"}, {zRES,"h=3,Y"}, {zRES,"l=3,Y"}, {zRES,"3,Y"}, {zRES,"a=3,Y"}, {zRES,"b=4,Y"}, {zRES,"c=4,Y"}, {zRES,"d=4,Y"}, {zRES,"e=4,Y"}, {zRES,"h=4,Y"}, {zRES,"l=4,Y"}, {zRES,"4,Y"}, {zRES,"a=4,Y"}, {zRES,"b=5,Y"}, {zRES,"c=5,Y"}, {zRES,"d=5,Y"}, {zRES,"e=5,Y"}, {zRES,"h=5,Y"}, {zRES,"l=5,Y"}, {zRES,"5,Y"}, {zRES,"a=5,Y"}, {zRES,"b=6,Y"}, {zRES,"c=6,Y"}, {zRES,"d=6,Y"}, {zRES,"e=6,Y"}, {zRES,"h=6,Y"}, {zRES,"l=6,Y"}, {zRES,"6,Y"}, {zRES,"a=6,Y"}, {zRES,"b=7,Y"}, {zRES,"c=7,Y"}, {zRES,"d=7,Y"}, {zRES,"e=7,Y"}, {zRES,"h=7,Y"}, {zRES,"l=7,Y"}, {zRES,"7,Y"}, {zRES,"a=7,Y"}, {zSET,"b=0,Y"}, {zSET,"c=0,Y"}, {zSET,"d=0,Y"}, {zSET,"e=0,Y"}, {zSET,"h=0,Y"}, {zSET,"l=0,Y"}, {zSET,"0,Y"}, {zSET,"a=0,Y"}, {zSET,"b=1,Y"}, {zSET,"c=1,Y"}, {zSET,"d=1,Y"}, {zSET,"e=1,Y"}, {zSET,"h=1,Y"}, {zSET,"l=1,Y"}, {zSET,"1,Y"}, {zSET,"a=1,Y"}, {zSET,"b=2,Y"}, {zSET,"c=2,Y"}, {zSET,"d=2,Y"}, {zSET,"e=2,Y"}, {zSET,"h=2,Y"}, {zSET,"l=2,Y"}, {zSET,"2,Y"}, {zSET,"a=2,Y"}, {zSET,"b=3,Y"}, {zSET,"c=3,Y"}, {zSET,"d=3,Y"}, {zSET,"e=3,Y"}, {zSET,"h=3,Y"}, {zSET,"l=3,Y"}, {zSET,"3,Y"}, {zSET,"a=3,Y"}, {zSET,"b=4,Y"}, {zSET,"c=4,Y"}, {zSET,"d=4,Y"}, {zSET,"e=4,Y"}, {zSET,"h=4,Y"}, {zSET,"l=4,Y"}, {zSET,"4,Y"}, {zSET,"a=4,Y"}, {zSET,"b=5,Y"}, {zSET,"c=5,Y"}, {zSET,"d=5,Y"}, {zSET,"e=5,Y"}, {zSET,"h=5,Y"}, {zSET,"l=5,Y"}, {zSET,"5,Y"}, {zSET,"a=5,Y"}, {zSET,"b=6,Y"}, {zSET,"c=6,Y"}, {zSET,"d=6,Y"}, {zSET,"e=6,Y"}, {zSET,"h=6,Y"}, {zSET,"l=6,Y"}, {zSET,"6,Y"}, {zSET,"a=6,Y"}, {zSET,"b=7,Y"}, {zSET,"c=7,Y"}, {zSET,"d=7,Y"}, {zSET,"e=7,Y"}, {zSET,"h=7,Y"}, {zSET,"l=7,Y"}, {zSET,"7,Y"}, {zSET,"a=7,Y"} }; 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const z80_disassembler::z80dasm z80_disassembler::mnemonic_ed[256] = { {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zIN,"b,(c)"}, {zOUT,"(c),b"}, {zSBC,"hl,bc"}, {zLD,"(W),bc"}, {zNEG,nullptr}, {zRETN,nullptr},{zIM,"0"}, {zLD,"i,a"}, {zIN,"c,(c)"}, {zOUT,"(c),c"}, {zADC,"hl,bc"}, {zLD,"bc,(W)"}, {zNEG,"*"}, {zRETI,nullptr},{zIM,"0"}, {zLD,"r,a"}, {zIN,"d,(c)"}, {zOUT,"(c),d"}, {zSBC,"hl,de"}, {zLD,"(W),de"}, {zNEG,"*"}, {zRETN,nullptr},{zIM,"1"}, {zLD,"a,i"}, {zIN,"e,(c)"}, {zOUT,"(c),e"}, {zADC,"hl,de"}, {zLD,"de,(W)"}, {zNEG,"*"}, {zRETI,nullptr},{zIM,"2"}, {zLD,"a,r"}, {zIN,"h,(c)"}, {zOUT,"(c),h"}, {zSBC,"hl,hl"}, {zLD,"(W),hl"}, {zNEG,"*"}, {zRETN,nullptr},{zIM,"0"}, {zRRD,"(hl)"}, {zIN,"l,(c)"}, {zOUT,"(c),l"}, {zADC,"hl,hl"}, {zLD,"hl,(W)"}, {zNEG,"*"}, {zRETI,nullptr},{zIM,"0"}, {zRLD,"(hl)"}, {zIN,"0,(c)"}, {zOUT,"(c),0"}, {zSBC,"hl,sp"}, {zLD,"(W),sp"}, {zNEG,"*"}, {zRETN,nullptr},{zIM,"1"}, {zDB,"?"}, {zIN,"a,(c)"}, {zOUT,"(c),a"}, {zADC,"hl,sp"}, {zLD,"sp,(W)"}, {zNEG,"*"}, {zRETI,nullptr},{zIM,"2"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zLDI,nullptr}, {zCPI,nullptr}, {zINI,nullptr}, {zOUTI,nullptr}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zLDD,nullptr}, {zCPD,nullptr}, {zIND,nullptr}, {zOUTD,nullptr}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zLDIR,nullptr}, {zCPIR,nullptr}, {zINIR,nullptr}, {zOTIR,nullptr}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zLDDR,nullptr}, {zCPDR,nullptr}, {zINDR,nullptr}, {zOTDR,nullptr}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"}, {zDB,"?"} }; 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const z80_disassembler::z80dasm z80_disassembler::mnemonic_main[256] = { {zNOP,nullptr}, {zLD,"bc,N"}, {zLD,"(bc),a"}, {zINC,"bc"}, {zINC,"b"}, {zDEC,"b"}, {zLD,"b,B"}, {zRLCA,nullptr}, {zEX,"af,af'"}, {zADD,"hl,bc"}, {zLD,"a,(bc)"}, {zDEC,"bc"}, {zINC,"c"}, {zDEC,"c"}, {zLD,"c,B"}, {zRRCA,nullptr}, {zDJNZ,"O"}, {zLD,"de,N"}, {zLD,"(de),a"}, {zINC,"de"}, {zINC,"d"}, {zDEC,"d"}, {zLD,"d,B"}, {zRLA,nullptr}, {zJR,"O"}, {zADD,"hl,de"}, {zLD,"a,(de)"}, {zDEC,"de"}, {zINC,"e"}, {zDEC,"e"}, {zLD,"e,B"}, {zRRA,nullptr}, {zJR,"nz,O"}, {zLD,"hl,N"}, {zLD,"(W),hl"}, {zINC,"hl"}, {zINC,"h"}, {zDEC,"h"}, {zLD,"h,B"}, {zDAA,nullptr}, {zJR,"z,O"}, {zADD,"hl,hl"}, {zLD,"hl,(W)"}, {zDEC,"hl"}, {zINC,"l"}, {zDEC,"l"}, {zLD,"l,B"}, {zCPL,nullptr}, {zJR,"nc,O"}, {zLD,"sp,N"}, {zLD,"(W),a"}, {zINC,"sp"}, {zINC,"(hl)"}, {zDEC,"(hl)"}, {zLD,"(hl),B"}, {zSCF,nullptr}, {zJR,"c,O"}, {zADD,"hl,sp"}, {zLD,"a,(W)"}, {zDEC,"sp"}, {zINC,"a"}, {zDEC,"a"}, {zLD,"a,B"}, {zCCF,nullptr}, {zLD,"b,b"}, {zLD,"b,c"}, {zLD,"b,d"}, {zLD,"b,e"}, {zLD,"b,h"}, {zLD,"b,l"}, {zLD,"b,(hl)"}, {zLD,"b,a"}, {zLD,"c,b"}, {zLD,"c,c"}, {zLD,"c,d"}, {zLD,"c,e"}, {zLD,"c,h"}, {zLD,"c,l"}, {zLD,"c,(hl)"}, {zLD,"c,a"}, {zLD,"d,b"}, {zLD,"d,c"}, {zLD,"d,d"}, {zLD,"d,e"}, {zLD,"d,h"}, {zLD,"d,l"}, {zLD,"d,(hl)"}, {zLD,"d,a"}, {zLD,"e,b"}, {zLD,"e,c"}, {zLD,"e,d"}, {zLD,"e,e"}, {zLD,"e,h"}, {zLD,"e,l"}, {zLD,"e,(hl)"}, {zLD,"e,a"}, {zLD,"h,b"}, {zLD,"h,c"}, {zLD,"h,d"}, {zLD,"h,e"}, {zLD,"h,h"}, {zLD,"h,l"}, {zLD,"h,(hl)"}, {zLD,"h,a"}, {zLD,"l,b"}, {zLD,"l,c"}, {zLD,"l,d"}, {zLD,"l,e"}, {zLD,"l,h"}, {zLD,"l,l"}, {zLD,"l,(hl)"}, {zLD,"l,a"}, {zLD,"(hl),b"}, {zLD,"(hl),c"}, {zLD,"(hl),d"}, {zLD,"(hl),e"}, {zLD,"(hl),h"}, {zLD,"(hl),l"}, {zHLT,nullptr}, {zLD,"(hl),a"}, {zLD,"a,b"}, {zLD,"a,c"}, {zLD,"a,d"}, {zLD,"a,e"}, {zLD,"a,h"}, {zLD,"a,l"}, {zLD,"a,(hl)"}, {zLD,"a,a"}, {zADD,"a,b"}, {zADD,"a,c"}, {zADD,"a,d"}, {zADD,"a,e"}, {zADD,"a,h"}, {zADD,"a,l"}, {zADD,"a,(hl)"},{zADD,"a,a"}, {zADC,"a,b"}, {zADC,"a,c"}, {zADC,"a,d"}, {zADC,"a,e"}, {zADC,"a,h"}, {zADC,"a,l"}, {zADC,"a,(hl)"},{zADC,"a,a"}, {zSUB,"b"}, {zSUB,"c"}, {zSUB,"d"}, {zSUB,"e"}, {zSUB,"h"}, {zSUB,"l"}, {zSUB,"(hl)"}, {zSUB,"a"}, {zSBC,"a,b"}, {zSBC,"a,c"}, {zSBC,"a,d"}, {zSBC,"a,e"}, {zSBC,"a,h"}, {zSBC,"a,l"}, {zSBC,"a,(hl)"},{zSBC,"a,a"}, {zAND,"b"}, {zAND,"c"}, {zAND,"d"}, {zAND,"e"}, {zAND,"h"}, {zAND,"l"}, {zAND,"(hl)"}, {zAND,"a"}, {zXOR,"b"}, {zXOR,"c"}, {zXOR,"d"}, {zXOR,"e"}, {zXOR,"h"}, {zXOR,"l"}, {zXOR,"(hl)"}, {zXOR,"a"}, {zOR,"b"}, {zOR,"c"}, {zOR,"d"}, {zOR,"e"}, {zOR,"h"}, {zOR,"l"}, {zOR,"(hl)"}, {zOR,"a"}, {zCP,"b"}, {zCP,"c"}, {zCP,"d"}, {zCP,"e"}, {zCP,"h"}, {zCP,"l"}, {zCP,"(hl)"}, {zCP,"a"}, {zRET,"nz"}, {zPOP,"bc"}, {zJP,"nz,A"}, {zJP,"A"}, {zCALL,"nz,A"}, {zPUSH,"bc"}, {zADD,"a,B"}, {zRST,"V"}, {zRET,"z"}, {zRET,nullptr}, {zJP,"z,A"}, {zDB,"cb"}, {zCALL,"z,A"}, {zCALL,"A"}, {zADC,"a,B"}, {zRST,"V"}, {zRET,"nc"}, {zPOP,"de"}, {zJP,"nc,A"}, {zOUT,"(P),a"}, {zCALL,"nc,A"}, {zPUSH,"de"}, {zSUB,"B"}, {zRST,"V"}, {zRET,"c"}, {zEXX,nullptr}, {zJP,"c,A"}, {zIN,"a,(P)"}, {zCALL,"c,A"}, {zDB,"dd"}, {zSBC,"a,B"}, {zRST,"V"}, {zRET,"po"}, {zPOP,"hl"}, {zJP,"po,A"}, {zEX,"(sp),hl"}, {zCALL,"po,A"}, {zPUSH,"hl"}, {zAND,"B"}, {zRST,"V"}, {zRET,"pe"}, {zJP,"(hl)"}, {zJP,"pe,A"}, {zEX,"de,hl"}, {zCALL,"pe,A"}, {zDB,"ed"}, {zXOR,"B"}, {zRST,"V"}, {zRET,"p"}, {zPOP,"af"}, {zJP,"p,A"}, {zDI,nullptr}, {zCALL,"p,A"}, {zPUSH,"af"}, {zOR,"B"}, {zRST,"V"}, {zRET,"m"}, {zLD,"sp,hl"}, {zJP,"m,A"}, {zEI,nullptr}, {zCALL,"m,A"}, {zDB,"fd"}, {zCP,"B"}, {zRST,"V"} }; char z80_disassembler::sign(s8 offset) { return (offset < 0)? '-':'+'; } u32 z80_disassembler::offs(s8 offset) { if (offset < 0) return -offset; return offset; } z80_disassembler::z80_disassembler() { } u32 z80_disassembler::opcode_alignment() const { return 1; } offs_t z80_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { s8 offset = 0; offs_t pos = pc; std::string ixy = "oops!!"; const z80dasm *d = nullptr; u8 op = opcodes.r8(pos++); switch (op) { case 0xcb: op = opcodes.r8(pos++); d = &mnemonic_cb[op]; break; case 0xed: d = &mnemonic_ed[opcodes.r8(pos++)]; if (d->mnemonic == zDB) pos--; break; case 0xdd: { ixy = "ix"; u8 op1 = opcodes.r8(pos++); if( op1 == 0xcb ) { offset = params.r8(pos++); op1 = params.r8(pos++); d = &mnemonic_xx_cb[op1]; } else { d = &mnemonic_xx[op1]; if (d->mnemonic == zDB) pos--; } break; } case 0xfd: { ixy = "iy"; u8 op1 = opcodes.r8(pos++); if( op1 == 0xcb ) { offset = params.r8(pos++); op1 = params.r8(pos++); d = &mnemonic_xx_cb[op1]; } else { d = &mnemonic_xx[op1]; if (d->mnemonic == zDB) pos--; } break; } default: d = &mnemonic_main[op]; break; } if( d->arguments ) { util::stream_format(stream, "%-4s ", s_mnemonic[d->mnemonic]); const char *src = d->arguments; while( *src ) { switch( *src ) { case '?': /* illegal opcode */ util::stream_format(stream, "$%02x", op ); break; case 'A': util::stream_format(stream, "$%04X", params.r16(pos) ); pos += 2; break; case 'B': /* Byte op arg */ util::stream_format(stream, "$%02X", params.r8(pos++) ); break; case 'N': /* Immediate 16 bit */ util::stream_format(stream, "$%04X", params.r16(pos) ); pos += 2; break; case 'O': /* Offset relative to PC */ util::stream_format(stream, "$%04X", (pc + s8(params.r8(pos++)) + 2) & 0xffff); break; case 'P': /* Port number */ util::stream_format(stream, "$%02X", params.r8(pos++) ); break; case 'V': /* Restart vector */ util::stream_format(stream, "$%02X", op & 0x38 ); break; case 'W': /* Memory address word */ util::stream_format(stream, "$%04X", params.r16(pos) ); pos += 2; break; case 'X': offset = params.r8(pos++); /* fall through */ case 'Y': util::stream_format(stream,"(%s%c$%02x)", ixy, sign(offset), offs(offset) ); break; case 'I': util::stream_format(stream, "%s", ixy); break; default: stream << *src; } src++; } } else { util::stream_format(stream, "%s", s_mnemonic[d->mnemonic]); } return (pos - pc) | s_flags[d->mnemonic] | SUPPORTED; }